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2 minute(s) of a 265 minute read
3-18-2014
I got all 8 pistons smoothed and polished:
Now I am going through all the piston rings and smoothing the edges from where I file fit the rings to the cylinders...
3-18-2014
Here was my technique:
1. Used masking tape to protect the piston from possible damage on the sides
2. Draw out the areas I wanted to "roll over the edges"
3. Use a variable speed pencil grinder with a stone tip to roll over the edges.
4. Used a coarse Emery cloth by hand to slowly remove small amounts of material on remaining areas that needed more work.
5. Went to a 200 grit emery cloth and removed scratches left by the heavy cloth
6. Went with a 800 grit to smooth out the scratches from the 200.
7. Used some "Never Dull" to shine it up
8. Wiped the piston clean and blew it down with air
9. Removed the tape (you can see a tiny bit of tape in one of the pictures)
10. Cleaned the pistons well, and put them away for when I am ready to assemble the engine for good.
I am sure there are better ways to do this but this worked fine. There are some scratches that I could not get out but overall I am happy with the results.
3-18-2014
More work to all 8 completed:
